#include "stm32f4xx.h"                  // Device header
#include "user.h"
int main()
{
  // delay_init(168);
	Config_Led();
  Config_Beep();
	Config_Key();


	my_systick_config();
    PWM_TIM2_CH3_BEEP_Config();
    My_usart_Config();
	while(1)
	{
	}
	
	
}
